Science Exam 9-22 Flashcards
What are three types of bias
Measurement, selection, and confirmation
What is measurement bias and how is it avoided
A systematic error that arises because of how data is collected
Make sure that instruments and methods are accurate
What is selection bias and how is it avoided
A systematic error that arises when a sample does not represent the target population
Random sampling
What is confirmation bias and how is it avoided
A systematic error that arises when we select evidence to support our hypothesis
Acknowledge other explanations for the result and seek evidence that goes against the hypothesis
Why is peer review important
-sharing ideas
-improves accuracy/quality
-allows for collaboration
What are the taxa in order
Domain, kingdom, phylum, class, order, family, genus, species
What are the three domains
Bacteria, archaea, and eukarya
What are the characteristics of the domain bacteria
Unicellular, no nucleus or organelles, has cell wall, can be helpful or harmful
What are the characteristics of the domain archaea
Unicellular, no nucleus or organelles, has cell wall, can live under extreme conditions
What are the characteristics of the domain eukarya
Unicellular or multicellular, have nucleus
What are the six kingdoms
Bacteria, archaea, animalia, plantae, fungi, and protista
What are the characteristics of the kingdom animalia
Multicellular, heterotrophic, no cell walls
What are the characteristics of the kingdom plantae
Multicellular, autotrophic, cell walls made of cellulose
What are the characteristics of the kingdom fungi
Mostly multicellular, heterotrophic, cell walls made of chitin
What are the characteristics of the kingdom protista
Mostly unicellular, heterotrophic and autotrophic, some have cell wall
What is the nucleus in an atom made of
Protons and neutrons
What are protons
Positively charged particles
What are neutrons
Neutrally charged particles
What are electrons
Negatively charged particles
What are the rings orbiting the atom’s nucleus called
Electron shells
What are atoms
The smallest part of and element that make up all living things
What are compounds
Two or more types of atoms that are chemically bonded
What are mixtures
A mix of two ore more types of atoms that are not chemically bonded
What are covalent bonds
When two nonmetals share a pair of valence electrons